Drill bit for drill bit: characteristics and types

Power tools for the last few yearsmade a huge leap in technological development. Manufacturers introduced capacious battery packs in the segment, ergonomic handles, functional additions and, of course, could not leave out the most critical part - the snap-fixing zone. A multifunctional cartridge for a drill for a drill shows an example of how a whole range of different operations can be performed on the power base of a single electric motor. This capability is provided by the design of the chuck.

Characteristics of cartridges

The cartridge in the perforator system is ametal element, whose task is to provide a link between the tooling and the drive mechanism of the tool. Characteristics of the cartridge are mainly considered in two parameters - liner thickness and drill diameter. That is, the fixation connector on the side of the perforator and the socket of the cartridge in which the drill will be installed. As for the first parameter, on average it is 10-18 mm. This is the size of the tail part, which is integrated into the clamp of the power tool. The size of the drill itself can be from 4 to 80 mm on average. But it is important to note that the chuck for a drill for a drill, depending on the type, is able to cover entire ranges of dimensional quantities. By weight, cartridges average 200-600 g. This value is also determined by the type of cartridge, its attachment system and structural features.

Classification of cartridges

The chuck as a mechanism for fixing the drill is differentby the type of the tail of the tooling. Traditional are four-and hexagonal configurations, as well as cylindrical forms for clamping. But their displacement from the market range began more than 10 years ago, when the family of SDS-liners came. Punch cartridges are divided into two main types:

The key.

Quick clamping.

This is not at all a division into tetrahedral andSDS-system, but it is the cartridge for the perforator under the drill of the second group that most often receives a quick-clamping locking system, since such nozzles are more common and technologically advanced. What does this mechanism give to practice? Getting rid of the use of a special key in the workflow. That is, the master can update the equipment with his own hands. In turn, the SDS system as such represents more significant changes in approaches to fixing the shank, and in different ways.

Also the cartridges are divided into SDS-plus and SDS-max. In such types the drill sits so deep that it reduces to zero the probability of its falling out during operation.

SDS-plus mechanism

The most common and attractive forusers of power tools format of the quick-action chuck SDS. The standard diameter is 10 mm, and for guns, models for 40 mm drills are more often used. The locking mechanism has 4 slots - two closed and one open. The first serve the guide wedges, and the second are responsible for the locking balls. It is noteworthy that the cartridge for the perforator under the SDS-plus drill is mainly oriented not for professional operation, but for the household segment. This is due to the modest formats of the same shanks. Quite often they are also used by borax with diameters from 6 to 12 mm.

Mechanism SDS-max

Principal differences in the design betweenplus and max versions are not. In both cases, the cartridge securely covers the drill shank, keeping it in place during operation. The difference is only in size - if the previous version works with the shanks by 10 mm, the SDS-max is designed for a size of 18 mm. However, this feature determines an important condition for the use of the tool. The larger the format of the cartridge and the tooling as a whole, the higher the load the machine can handle. For example, the cartridge for the perforator for the Makita drill, designed for the HR 5001 C model, is capable of withstanding the impact force of 17.5 J. This modification of the puncher has a power of 1500 W, which allows it to perform complex drilling operations with a diameter of up to 160 mm. Obviously, with a 10 mm SDS-plus retention shank by 10 mm, such a performance would not be possible.

The mechanism of SDS-top

It can be said that this is an intermediate cartridge, whichAlso works on the principle of 4-segment gripping, but serves the shank by 14 mm. As for the Boers, for them sizes from 4 to 32 mm are foreseen. Initially it was a cartridge for a perforator for a Bosch drill - the company introduced this format to support the lightweight SDS-plus snap-in, which was often used inappropriately for large formats. The maximum size of the cartridge is not always suitable for sizes 14-16 mm, so many masters were forced to risk such elements. Today, the need for SDS-top arises rarely, because the lower link of SDS-plus has become almost universal due to the use of improved alloys in the design.

There are other modifications of this system withcartridges in which there are changes in the fixation mechanism, but they are used even less often and only for special purposes. For example, in some modifications, protrusions are used instead of grooves. This option can be justified in terms of the strength of the fasteners, but the mechanics of the installation itself are more troublesome than conventional SDS devices.

Makita cartridges

Japanese manufacturer is one of the leadersin the segment of consumables and accessories for power tools. In the family of the company you can find key models with shanks from 1.5 to 13 mm. Of course, the newest designs of quick-action chucks are also possible, which are used both in the composition of lightweight perforators and for the assembly of heavy-duty heavy equipment. By the way, the cartridge for the drill for Makta perforator is carried out on universal principles, which allows it to be used both in the composition of own tools and for models of other companies.

Bosch cartridges

In Bosch, they rely on the development of modern andthe most popular cartridges, among which the quick-action mechanisms SDS-plus. And the company clearly segments its equipment for its intended use - for wood, concrete, stone and metal. Accordingly, for each type of cartridge, special alloys and sizes are used. In addition, the cartridge for the perforator for the Bosch drill bit from 1.5 mm to 13 mm is capable of supporting the reverse function and impact mode. That is, to a greater extent German components are sharpened to create holes by a professional tool. As for the reviews, users highly value Bosch cartridges, noting their structural ergonomics, small weight and durability.

Conclusion

The trend in the development of new cartridges and inThe whole functional tooling for the drill power tool is gradually moving towards optimization and universalization of the elements. The signs of this process are already expressed today in the fact that a powerful perforator, thanks to the wide possibilities of assembling the cartridge and the drill, can carry out a huge range of operations, regardless of the working material. In many respects this was facilitated by the cartridge for the perforator under the drill of the SDS system, but in parallel the other direction is developing, in which adapters and adapters are offered. Binding elements of this type make it possible to use different types of SDS-cartridges, regardless of the main orientation of the tool. But it is important to take into account that the inclusion of new links lowers the structural stability and reliability of the device.